When you are travelling，bring a map because it help you．（ ）
| A． |
can't |
B． |
mustn't |
C． |
used to |
D． |
may |
Paper is useful invention．Cai Lun invented it around 2，000 years ago．（ ）
| A． |
a |
B． |
an |
C． |
the |
D． |
不填 |
Excuse me， could you tell me _______？
Go along this road to the bus station， and take Bus No． 31．（ ）
| A． |
where is the Rice Museum |
| B． |
which the way to the Rice Museum was |
| C． |
how I can get to the Rice Museum |
| D． |
whether is the Rice Museum near here |
A landmark（里程碑） in the history of science was made by a photo _______ was taken on April 10th about the black hole in a faraway galaxy（星系）．（ ）
| A． |
who |
B． |
which |
C． |
what |
D． |
when |
Our life _______ greatly by 3D printing technology in a few years．（ ）
| A． |
will influence |
B． |
influences |
| C． |
will be influenced |
D． |
is influenced |
My best friend went abroad． I miss her and feel down today．
Don't be sad． Here is good news for you _______．（ ）
| A． |
cheer up |
B． |
cheering up |
| C． |
cheered up |
D． |
to cheer up |